package com.github.niefy.common.aspect;
import com.alibaba.fastjson.JSON;
import com.github.niefy.common.annotation.SysLog;
import com.github.niefy.common.utils.HttpContextUtils;
import com.github.niefy.common.utils.IPUtils;
import com.github.niefy.modules.sys.entity.SysLogEntity;
import com.github.niefy.modules.sys.entity.SysUserEntity;
import com.github.niefy.modules.sys.service.SysLogService;
import org.apache.shiro.SecurityUtils;
import org.aspectj.lang.ProceedingJoinPoint;
import org.aspectj.lang.annotation.Around;
import org.aspectj.lang.annotation.Aspect;
import org.aspectj.lang.annotation.Pointcut;
import org.aspectj.lang.reflect.MethodSignature;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

import javax.servlet.http.HttpServletRequest;
import java.lang.reflect.Method;
import java.util.Date;
/**
 * 系统日志，切面处理类
 *
 * @author Mark sunlightcs@gmail.com
 */
@Aspect
@Component
public class SysLogAspect {
  Logger logger = LoggerFactory.getLogger(this.getClass());
  @Autowired
  private SysLogService sysLogService;
  @Pointcut("@annotation(com.github.niefy.common.annotation.SysLog)")
  public void logPointCut() {
  }
  @Around("logPointCut()")
  public Object around(ProceedingJoinPoint point) throws Throwable {
    long beginTime = System.currentTimeMillis();
    //执行方法
    Object result = point.proceed();
    //执行时长(毫秒)
    long time = System.currentTimeMillis() - beginTime;
    //保存日志
    saveSysLog(point, time);
    return result;
  }
  private void saveSysLog(ProceedingJoinPoint joinPoint, long time) {
    MethodSignature signature = (MethodSignature) joinPoint.getSignature();
    Method method = signature.getMethod();
    SysLogEntity sysLog = new SysLogEntity();
    SysLog syslog = method.getAnnotation(SysLog.class);
    if (syslog != null) {
      //注解上的描述
      sysLog.setOperation(syslog.value());
    }
    //请求的方法名
    String className = joinPoint.getTarget().getClass().getName();
    String methodName = signature.getName();
    sysLog.setMethod(className + "." + methodName + "()");
    //请求的参数
    Object[] args = joinPoint.getArgs();
    try {
      String params = JSON.toJSONString(args);
      sysLog.setParams(params);
    }
    catch (Exception e) {
      logger.error("saveSysLogError", e);
    }
    //获取request
    HttpServletRequest request = HttpContextUtils.getHttpServletRequest();
    //设置IP地址
    sysLog.setIp(IPUtils.getIpAddr(request));
    //用户名
    String username = ((SysUserEntity) SecurityUtils.getSubject().getPrincipal()).getUsername();
    sysLog.setUsername(username);
    sysLog.setTime(time);
    sysLog.setCreateDate(new Date());
    //保存系统日志
    sysLogService.save(sysLog);
  }
}
